On Sat, Aug 29, 2015 at 05:47:02PM +0100, Richard W.M. Jones wrote: > Still investigating this, and I've not filed a bug yet, but the stack > trace is below. > > [ 0.067000] BUG: unable to handle kernel paging request at 55501e06 > [ 0.067000] IP: [<c0aae48b>] common_interrupt+0xb/0x38 > [ 0.067000] *pde = 00000000 > [ 0.067000] Oops: 0000 [#1] SMP > [ 0.067000] Modules linked in: > [ 0.067000] CPU: 0 PID: 0 Comm: swapper/0 Not tainted 4.2.0-0.rc8.git3.1.fc24.i686 #1 > [ 0.067000] Hardware name: QEMU Standard PC (i440FX + PIIX, 1996), BIOS 1.8.2-20150714_191134- 04/01/2014 > [ 0.067000] task: c0d49ac0 ti: c0d42000 task.ti: c0d42000 > [ 0.067000] EIP: 0060:[<c0aae48b>] EFLAGS: 00200046 CPU: 0 > [ 0.067000] EIP is at common_interrupt+0xb/0x38 > [ 0.067000] EAX: c0aae480 EBX: 0000008d ECX: c0ab1c83 EDX: e4af6810 > [ 0.067000] ESI: bde0a203 EDI: 00000003 EBP: c0d43e68 ESP: c0d43e44 > [ 0.067000] DS: 007b ES: 007b FS: 00d8 GS: 00e0 SS: 0068 > [ 0.067000] CR0: 8005003b CR2: 55501e06 CR3: 00ebd000 CR4: 00000690 > [ 0.067000] DR0: 00000000 DR1: 00000000 DR2: 00000000 DR3: 00000000 > [ 0.067000] DR6: 00000000 DR7: 00000000 > [ 0.067000] Stack: > [ 0.067000] 0000004f c0409c80 00000060 00200202 00200046 c0d43e60 c0ea150c bde0a203 > [ 0.067000] 00000000 c0d43fb8 c040a054 c07f1cf0 6c0a1000 ffff0006 00200046 00000043 > [ 0.067000] c0ed0bc0 00000000 c0d43e98 c071a6fc c0d43ea8 c0d43ec4 c0ea4c73 c0ea4c7f > [ 0.067000] Call Trace: > [ 0.067000] [<c0409c80>] ? add_nops+0x90/0xa0 > [ 0.067000] [<c040a054>] apply_alternatives+0x274/0x630 > [ 0.067000] [<c07f1cf0>] ? wait_for_xmitr+0xa0/0xa0 > [ 0.067000] [<c071a6fc>] ? sprintf+0x1c/0x20 > [ 0.067000] [<c0aae480>] ? irq_entries_start+0x698/0x698 > [ 0.067000] [<c071be4b>] ? memcpy+0xb/0x30 > [ 0.067000] [<c07f3950>] ? serial8250_set_termios+0x20/0x20 > [ 0.067000] [<c0aad4e3>] ? _raw_write_unlock_irqrestore+0x13/0x20 > [ 0.067000] [<c0aad4e3>] ? _raw_write_unlock_irqrestore+0x13/0x20 > [ 0.067000] [<c0aad4fd>] ? _raw_spin_unlock_irqrestore+0xd/0x10 > [ 0.067000] [<c04b17b9>] ? console_unlock+0x2e9/0x610 > [ 0.067000] [<c04b1d7e>] ? vprintk_emit+0x29e/0x570 > [ 0.067000] [<c04b21e1>] ? vprintk_default+0x41/0x60 > [ 0.067000] [<c0aa7725>] ? printk+0x17/0x19 > [ 0.067000] [<c0dfdd48>] ? identify_boot_cpu+0x7b/0x80 > [ 0.067000] [<c0dfca47>] alternative_instructions+0x17/0xc1 > [ 0.067000] [<c0dfdda9>] check_bugs+0x32/0x39 > [ 0.067000] [<c0df6b57>] start_kernel+0x3ca/0x40a > [ 0.067000] [<c0df62e3>] i386_start_kernel+0x91/0x95 > [ 0.067000] Code: 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 8d 90 90 83 04 24 80 fc 0f a8 0f <a0> 06 1e 50 55 57 56 52 51 53 ba 7b 00 00 00 8e da 8e c2 ba d8 > [ 0.067000] EIP: [<c0aae48b>] common_interrupt+0xb/0x38 SS:ESP 0068:c0d43e44 > [ 0.067000] CR2: 0000000055501e06 > [ 0.067000] ---[ end trace 647e339d9f07816f ]--- Reproduced it eventually. BZ is: https://bugzilla.redhat.com/show_bug.cgi?id=1258223 Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/ -- devel mailing list devel@xxxxxxxxxxxxxxxxxxxxxxx https://admin.fedoraproject.org/mailman/listinfo/devel Fedora Code of Conduct: http://fedoraproject.org/code-of-conduct
